01 Ezhova Olga

Olga V. Ezhova

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Scientific interests: morphology, microscopic anatomy, fine structure of the deuterostomes; comparative anatomy and 3D-reconstruction of Echinodermata, Hemichordata, and Chordata; evolutionary transformations of Deuterostomia, phylogenetic relationships between different classes of deuterostome animals; "Vertebrata - are such Invertebrata".

PhD thesis: "Microscopic anatomy and fine structure of the skeleton-heart-kidney complex of Saccoglossus mereschkowskii, Wagner, 1885 (Hemichordata, Enteropneusta)" (defended in 2008 under the guidance of Professor V.V. Malakhov).

Publications:

Attention! Use of this electronic offprint is permitted only for author's personal scientific needs: lectures, discussions, further research, etc., in accordance with the conditions set forth in the author's agreement. Reference to the source of the publication is obligatory. All inquiries from third persons for other purposes should be submitted in writing to the publisher.

        Ezhova O.V., Malakhov V.V. 2022. Origin of Echinodermata // Paleontological Journal. 56(8):76–111.
DOI: 10.1134/S0031030122080020.
Ezhova 2022 1       Ezhova O.V., Belolyubskaya K.I., Krupenko D.Y., Lukinykh A.I., Malakhov V.V. 2022. The first discovery of Trematodes (Digenea) in the deep-sea acorn worms Torquaratoridae (Hemichordata, Enteropneusta) // Doklady Biological Sciences. 503:68-71.
DOI: 10.1134/S0012496622020016
 Ezhova 2021 6       Ezhova O.V., Lukinykh A.I., Galkin S.V., Krylova E.M., Gebruk A.V. 2022. Deep-sea acorn worms (Enteropneusta) from the Bering Sea with the description of a new genus and a new species of Torquaratoridae dominating soft-bottom communities // Deep-Sea Research Part II: Topical Studies in Oceanography. 195:105014.
DOI: 10.1016/j.dsr2.2021.105014
 Ezhova 2021 8       Ezhova O.V., Malakhov V.V. 2021. Coelom metamerism in Echinodermata // Paleontological Journal. 55(10):1073-1083.
DOI: 10.1134/S0031030121100038
 Ezhova 2021 7       Ezhova O.V., Malakhov V.V. 2021. The axial complex of echinoderms represents the kidney and is homologous to the hemichordate heart-kidney // Paleontological Journal. 55(9):1029-1038.
DOI: 10.1134/S0031030121090033
 Ezhova 2021 2       Ezhova O.V., Trukhan M.A., Lukinykh A.I., Krylova E.M., Galkin S.V., Gebruk A.V., Malakhov V.V. 2021. Feeding peculiarities of deep-sea acorn worm (Hemichordata, Enteropneusta, Torquaratoridae) from the Bering sea // Doklady Biological Sciences. 500:149-152.
DOI: 10.1134/S0012496621050033
 Ezhova 2021 4       Ezhova O.V., Kokurkina J.A., Belolubskaya K.I., Malakhov V.V. 2021. Coelomic system of the sea urchin Strongylocentrotus pallidus (Echinodermata, Echinoidea) and the problem of coelomic metamerism in echinoderms // Doklady Biological Sciences. 501:214-219.
DOI: 10.1134/S0012496621050021
Ezhova 2020 2        Ezhova O.V., Malakhov V.V. 2020. Axial complex of Crinoidea: comparison with other Ambulacraria // Journal of Morphology. 2020. 281(11):1456-1475.
DOI: 10.1002/jmor.21259
Ezhova 2020 1        Ezhova O.V., Malakhov V.V. 2020. Is the gill skeleton of acorn worms (Enteropneusta) similar to the gill skeleton of Amphioxus (Cephalochordata)? // Doklady Biological Sciences. 494:232-235.
DOI: 10.1134/S001249662005004X

Kremenetskaia et al 2019 

       Kremenetskaia A., Ezhova O., Drozdov A.L., Rybakova E., Gebruk A. 2020. On the Reproduction of two deep-sea Arctic holothurians, Elpidia heckeri and Kolga hyalina (Holothuroidea: Elpidiidae) // Invertebrate Reproduction and Development. 64(1):33-47.
DOI: 10.1080/07924259.2019.1692915
Lukinykh 2018       

Lukinykh A.I., Ezhova O.V., Krylenko S.V., Galkin S.V., Gebruk A.V., Malakhov V.V. 2018. Discovery of Trunk Coelomoducts in Hemichordata // Doklady Biological Sciences. 483(1):228-230.
DOI: 10.1134/S0012496618060042
 Ezhova 2018 1       Ezhova O.V., Malakhov V.V., Egorova E.A. 2018. Axial complex and associated structures of the sea urchin Strongylocentrotus pallidus (Sars, G.O. 1871) (Echinodermata: Echinoidea) // Journal of Morphology. 279(6):792-808.
DOI: 10.1002/jmor.20811
 Ezhova 2017 1       Ezhova O.V., Ershova N.A., Malakhov V.V. 2017. Microscopic anatomy of the axial complex and associated structures in the sea cucumber Chiridota laevis Fabricius, 1780 (Echinodermata, Holothuroidea) // Zoomorphology. 136(2):205-217.
DOI: 10.1007/s00435-016-0341-8
 Ezhova 2016 2       Ezhova O.V., Malakhov V.V. 2016. How did gill slits appear? // Priroda. 10:9-15. [in Russian]
 Ezhova 2016 1       Ezhova O.V., Malakhov V.V. 2016. Do echinoderms have kidneys? // Priroda. 7:22-29. [in Russian]
 Ezhova 2016 3       Ezhova O.V., Malakhov V.V., Martynov A.V. 2016. Madreporites of Ophiuroidea: are they phylogenetically informative? // Zoomorphology. 135(3):333-350.
DOI: 10.1007/s00435-016-0315-x
 Ezhova 2016 8       Ezhova O.V., Egorova E.A., Malakhov V.V. 2016. Ultrastructural evidence of the excretory function in the asteroid axial organ (Asteroidea, Echinodermata) // Doklady Biological Sciences. 468:129-132.
DOI: 10.7868/S0869565216160271
 Ezhova 2016 9       Ezhova O.V., Egorova E.A., Malakhov V.V. 2016. Transformations of the ophiuroid axial complex as a result of the shifting of the madreporite to the oral side // Biology Bulletin. 43(6):494-502.
DOI: 10.1134/S1062359016060091
 Ezhova 2015 2       Ezhova O.V., Malakhov V.V. 2015. The nephridial hypothesis of the gill slit origin // Journal of Experimental Zoology Part B (Molecular and Developmental Evolution).  324(8):647-652.
DOI: 10.1002/jez.b.22645
 Ezhova 2015 1       Ezhova O.V., Lavrova E.A., Ershova N.A., Malakhov V.V. 2015. Microscopic anatomy of the axial complex and associated structures in the brittle star Ophiura robusta Ayres, 1854 (Echinodermata, Ophiuroidea) // Zoomorphology. 134(2):247-258.
DOI: 10.1007/s00435-014-0251-6
 Ezhova 2014 3       Ezhova O.V., Lavrova E.A., Malakhov V.V. 2014. The Morphology of the Axial Complex and Associated Structures in Asterozoa (Asteroidea, Echinoidea, Ophiuroidea) // Russian Journal of Marine Biology. 40(3):153-164.
DOI: 10.1134/S1063074014030043
 Ezhova 2013 2       Ezhova O.V., Malakhov V.V. 2013. About Saccoglossus, zoologists, and inverted chordates // Priroda. 2:49-56. [in Russian]
 Ezhova 2013 3       Ezhova O.V., Lavrova E.A., Malakhov V.V. 2013. Microscopic Anatomy of the of the Axial Complex in the Starfish Asterias rubens (Echinodermata, Asteroidea) // Biology Bulletin. 40(8):643-653.
DOI: 10.1134/S1062359013080049
 Ezhova 2010 5       Ezhova O.V., Malakhov V.V. 2010. Microscopic Anatomy and Fine Structure of the Skeleton-Heart-Kidney Complex in Saccoglossus mereschkowskii (Hemichordata, Enteropneusta): 1. Stalk Skeleton // Biology Bulletin. 37(8):795-806.
DOI: 10.1134/S1062359010080042
 Ezhova 2010 2       Ezhova O.V., Malakhov V.V. 2010. Microscopic Anatomy and Fine Structure of the Skeleton-Heart-Kidney Complex in Saccoglossus mereschkowskii (Hemichordata, Enteropneusta): 2. Buccal Diverticulum // Zoologicheskii Zhurnal. 89(6):643-662. [in Russian]
 Ezhova 2010 3       Ezhova O.V., Malakhov V.V. 2010. Microscopic Anatomy and Fine Structure of the Skeleton-Heart-Kidney Complex in Saccoglossus mereschkowskii (Hemichordata, Enteropneusta): 3. Heart and Blood Vessels // Zoologicheskii Zhurnal. 89(7):771-785. [in Russian]
 Ezhova 2010 4       Ezhova O.V., Malakhov V.V. 2010. Microscopic Anatomy and Fine Structure of the Skeleton-Heart-Kidney Complex in Saccoglossus mereschkowskii (Hemichordata, Enteropneusta): 4. Heart-kidney, Proboscis Coelom, and Proboscis Coelomoduct // Zoologicheskii Zhurnal. 89(8):899-923. [in Russian]
 Ezhova 2009       Ezhova O.V., Malakhov V.V. 2009. Three-dimensional structure of the Skeleton and Buccal Diverticulum of an acorn worm Saccoglossus mereschkowskii Wagner, 1885 (Hemichordata, Enteropneusta) // Invertebrate Zoology. 6(2):103-116.
 Ezhova 2007 2       Ezhova O.V., Malakhov V.V. 2007. The Morphology of the Skeletal Element of Saccoglossus mereschkowskii (Hemichordata, Enteropneusta) // Doklady Biological Sciences. 417: 439-441.
DOI: 10.1134/S0012496607060087
 Ezhova 2007 1       Ezhova O.V., Malakhov V.V. 2007. Musculo-Epithelial Cells in the Intestine of the Representative of Hemichordates Saccoglossus mereschkowskii (Hemichordata, Enteropneusta) // Doklady Biological Sciences. 414: 216-218.
DOI: 10.1134/S0012496607030131

 

Conferences:

Ezhova 2021 5

       Ezhova O.V., Lukinykh A.I., Krylova E.M., Galkin S.V., Gebruk A.V. 2021. Deep-sea Enteropneust Fauna of the Bering Sea // 16th Deep-Sea Biology Symposium. Brest. P. 104.        

Ezhova 2018 2

       Ezhova O.V., Lukinykh A.I., Galkin S.V., Gebruk A.V., Malakhov V.V. 2018. New data on the anatomy of the deep-sea acorn worms (Hemichordata: Enteropneusta, Torquaratoridae) // "Invertebrate Zoology - New Century". Moscow. Lomonosov MSU.        

Ezhova 2017 3

       Ezhova O.V., Malakhov V.V. 2017. Coelom metamerism of Echinodermata // Morphogenesis in individual and historical development: ontogenesis and formation of biological diversity. Moscow. Paleontological Institute RAS.        

Ezhova 2017 2

       Ezhova O.V., Malakhov V.V. 2017. Metamerism in the Echinodermata // The Fourth International Congress on Invertebrate Morphology. Moscow. P. 11.        

Ezhova 2016 7

       Ezhova O.V., Malakhov V.V. 2016. New Hypothesis of the Gill Slits Origin // Lomonosov Readings. Moscow. Lomonosov MSU.        

Ezhova 2016 6

       Ezhova O.V., Martynov A.V., Malakhov V.V. 2016. Madreporites in classis Ophiuroidea: morphology and evolution // Echinoderm Axial Complex and related issues. Moscow. Paleontological Institute RAS.        

Ezhova 2015 3

       Ezhova O.V., Egorova E.A., Malakhov V.V. 2015. Axial complex of Ophiura robusta Ayres, 1854 (Echinodermata, Ophiuroidea): microscopic anatomy reveals the evolutionary way // The Second Russian Conferens on Echinodermata. Moscow. Paleontological Institute RAS. P. 14-15.        

Ezhova 2014 2

       Ezhova O.V., Malakhov V.V. 2014. The branchial apparatus of Saccoglossus mereschkowskii (Hemichordata, Enteropneusta): nephridial hypothesis of the gill slit origin // The Third International Congress on Invertebrate Morphology. Berlin. P. 77.        

Ezhova 2008

       Ezhova O.V., Malakhov V.V. 2008. Skeleton and buccal diverticulum of Saccoglossus mereschkowskii (Enteropneusta) // The First International Congress on Invertebrate Morphology. Copenhagen. P. 108.         

 

Scientific grants:

rffi            
  • "Gill slits: a mystery of Deuterostomia", 2020-
  • "Origin of echinoderms" (scientific review), 2020
  • "Origin of echinoderms: morphological evolution within the clade Ambulacralia", 2017-2019
  • "Echinoderm coelomic system: microscopic anatomy and ultrastructure", 2014-2016
  • "The heart-kidney complex in Hemichordata and Echinodermata: structure, origin, importance for the phylogeny of Ambulacralia", 2011-2013
               
rsf            
  • "Scientific revolution in zoomorphology: new methods and approaches in the science and education", 2018-2021